created a template python project with docker-compose integration tests

Dockerfile

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+FROM python:2.7
+
+WORKDIR /app
+
+ADD requirements.txt /app/requirements.txt
+RUN pip install -r requirements.txt
+
+ADD app.py /app/app.py
+
+EXPOSE 80
+
+CMD ["python", "app.py"]

Dockerfile.test

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+FROM ubuntu:trusty
+
+RUN apt-get update && apt-get install -yq curl && apt-get clean
+
+WORKDIR /app
+
+ADD test.sh /app/test.sh
+
+CMD ["bash", "test.sh"]

app.py

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+from flask import Flask
+from redis import Redis
+
+app = Flask(__name__)
+redis = Redis(host="redis")
+
+@app.route("/")
+def hello():
+    visits = redis.incr('counter')
+    html = "<h3>Hello World!</h3>" \
+           "<b>Visits:</b> {visits}" \
+           "<br/>"
+    return html.format(visits=visits)
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=80)

docker-compose.test.yml

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+sut:
+  build: .
+  dockerfile: Dockerfile.test
+  links:
+    - web
+web:
+  build: .
+  dockerfile: Dockerfile
+  links:
+    - redis
+redis:
+  image: redis

docker-compose.yml

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+web:
+  build: .
+  dockerfile: Dockerfile
+  links:
+    - redis
+  ports:
+    - "80:80"
+redis:
+  image: redis

requirements.txt

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+Flask
+Redis

test.sh

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+sleep 5
+if curl web | grep -q '<b>Visits:</b> '; then
+  echo "Tests passed!"
+  exit 0
+else
+  echo "Tests failed!"
+  exit 1
+fi